Answer:
The 90% confidence level margin of error for this sample mean is 0.42
Step-by-step explanation:
The Human Resources department conduct a random sample of 30 employees
n = 30
Standard deviation = 
z = 1.645
Formula of 90% confidence level margin of error for this sample mean=
So, margin of error for this sample mean=
So, margin of error for this sample mean=0.42
Hence the 90% confidence level margin of error for this sample mean is 0.42
Answer:
180 degrees is the answer.
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w = number of weeks
b(w) = number of books read after w weeks
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b(w) = 12 translates to "after w weeks, Katy will have read 12 books" or put another way "Katy will have read 12 books after w weeks". The 'w' is a placeholder for some number
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b(2) = 10 means "Katy has read 10 books after 2 weeks". We use the same basic idea talked about above, but we replace w with 2. At the same time, we use 10 instead of 12.
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b(3) = f means "Katy has read f books after 3 weeks" or "after 3 weeks, Katy has read f books". Like w, the f is a placeholder for some number.
Answer:
2
inches
Step-by-step explanation:
First, I would try to get the mixed numbers into improper fractions. Then, I try to make them have the same denominator so it is easier.
1
feet --- 2 inches
feet --- 2 inches
feet --- 2 inches
1
feet --- ? inches
feet --- ? inches
feet ---
× 2 inches
= 2
inches